Study on interaction between Dy(III)(NR)

The action mode between Dy(III)(NR)3 and herring sperm DNA is studied by ultraviolet-visible (UV-vis) and fluorescence spectra as well as electrochemistry. Double-reciprocal method studies show that the binding stoichiometry between Dy(III)(NR)3 and DNA is 1:1, the binding constants at different temperatures are 1。15×105 L/mol at 25 °C and 2.09×105 L/mol at 35 °C, and the corresponding thermodynamic parameters are \DeltarH \mathrm m = 2.48×10<